package com.gxuwz.medical.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import com.gxuwz.medical.database.DBUtil;
import com.gxuwz.medical.domain.policy.Policy;
import com.gxuwz.medical.domain.vo.Page;

/**
 * 慢性病政策管理
 * @author 沉羽墨玖
 *
 */
public class PolicyDao extends BaseDao {
	private static final String SQL_SELECT_RUNYEAR = "select * from chronicdis where illCode=?";

	@Override
	protected Policy handle(ResultSet rs) throws SQLException {

		Policy policy = new Policy();
		policy.setRunYear(rs.getString("runYear"));
		policy.setMaxline(rs.getDouble("maxline"));
		policy.setStatus(rs.getString("status"));
		policy.setRemark(rs.getString("remark"));
		policy.setRatio(rs.getDouble("ratio"));
		return policy;
	}

	/**
	 * 查找对应的慢性病政策记录并转为对象实例
	 * 
	 * @param runYear
	 * @return
	 * @throws Exception
	 */
	public Policy get(String runYear) throws SQLException {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		try {
			conn = DBUtil.getConn();
			pstmt = conn.prepareStatement(SQL_SELECT_RUNYEAR);
			int index = 1;
			pstmt.setString(index, runYear);
			rs = pstmt.executeQuery();
			return handle(rs);
		} catch (SQLException e) {
			throw new SQLException("读取runYear记录失败", e);
		}
	}

	/**
	 * @param sql
	 * @param params
	 * @return
	 * @throws SQLException
	 */
	public List<Policy> queryObjects(String sql, Object[] params)
			throws SQLException {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		List<Policy> results = new ArrayList<Policy>();
		try {
			conn = DBUtil.getConn();
			pstmt = conn.prepareStatement(sql);
			int index = 1;
			if (params != null) {
				for (Object param : params) {
					if (param instanceof String) {
						pstmt.setString(index++, (String) param);
					}
					if (param instanceof Integer) {
						pstmt.setInt(index++, (Integer) param);
					}
					if (param instanceof Float) {
						pstmt.setFloat(index++, (Float) param);
					}if (param instanceof Double) {
						pstmt.setDouble(index++, (Double) param);
					}
				}

			}
			rs = pstmt.executeQuery();
			while (rs.next()) {
				Policy policy = handle(rs);
				results.add(policy);
			}
			return results;
		} catch (SQLException e) {
			throw new SQLException("执行SQL[" + sql + "]失败", e);
		}
	}

	public Page queryOjectsByPage(String sql, Object[] params, int pageNo,
			int size) throws SQLException {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		Page page = null;
		List<Policy> datas = new ArrayList<Policy>();
		try {
			int start = (pageNo - 1) * size;
			conn = DBUtil.getConn();
			pstmt = conn.prepareStatement(sql + " limit " + start + "," + size);
			int index = 1;
			if (params != null) {
				for (Object param : params) {
					if (param instanceof String) {
						pstmt.setString(index++, (String) param);
					}
					if (param instanceof Integer) {
						pstmt.setInt(index++, (Integer) param);
					}
					if (param instanceof Float) {
						pstmt.setFloat(index++, (Float) param);
					}
					if (param instanceof Double) {
						pstmt.setDouble(index++, (Double) param);
					}
				}
			}
			rs = pstmt.executeQuery();
			while (rs.next()) {
				Policy policy = handle(rs);
				datas.add(policy);
			}
			// 统计SQL对应记录数
			int total = count(sql, params);
			page = new Page(total, pageNo, size, datas);
			return page;
		} catch (SQLException e) {
			throw new SQLException("执行SQL[" + sql + "]失败", e);
		}

	}

}
